## 四大基本数据结构中哪些是可变的, 哪些是不可变的。有序或者无序?
#   list()--列表 可变-可更改 有序
#   tuple()--元组 不可变-不可更改 有序
#   dict()--字典 可变的-可更改 无序
#   set()--集合  可变-可更改  无序


def datatest():
    int_t = 1
    float_t = 0.1
    string_t = 'Derek'
    bool_t = True
    byte_t = bytes('23', encoding='utf-8')
    none_t = None

    list_t = [int_t, float_t, string_t, bool_t, byte_t, none_t]
    tuple_t = (int_t, float_t, string_t, bool_t, byte_t, none_t)
    dict_t = {int_t, float_t, string_t, bool_t, byte_t, none_t}
    set_t = (int_t, float_t, string_t, bool_t, byte_t, none_t)

    print(list_t, tuple_t, dict_t, set_t)

print(datatest())
